Re: Kexec for v2.5.47-bk2

Suparna Bhattacharya
2002-11-15T09:15:57Z

On Wed, Nov 13, 2002 at 06:26:29AM -0700, Eric W. Biederman wrote:
>
> O.k. and now a version that applies cleanly to
> v2.5.47-bk2 aka ChangeSet@1.845
>

BTW, results similar to Andy on my SMP system (the same problem
machine we'd talked about earlier). Same problem ?

with 2.5.47-bk2
+ kexec patch for 2.5.47-bk2 attached in your mail
+ linux-2.5.47.x86kexec-hwfixes
and using
kexec-tools-1.5

Results of kexec kexec_test

[root@llm01 root]# Synchronizing SCSI caches:
Shutting down devices
Starting new kernel
kexec_test 1.5 starting...
eax: 0E1FB007 ebx: 00001078 ecx: 00000000 edx: 00000000
esi: 00000000 edi: 00000000 esp: 00000000 ebp: 00000000
idt: 00000000 C0000000
gdt: 00000000 C0000000
Switching descriptors.
Descriptors changed.
Legacy pic setup.
In real mode.
<hang>

What would be best way to pass a parameter or address from the
current kernel to kernel being booted (e.g log buffer address
or crash dump buffer etc) ? Should this be part of the interface,
i.e. could/would it make sense for kexec to support this (rather
than our having to go and try to fix up kernel parameters ourselves,
or designate a fixed address for this) ? Also thinking
about other arch support for kexec in the future ...

Regards
Suparna